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All Journal Indonesian Journal of Educational Science (IJES) JTTM: Jurnal Terapan Teknik Mesin Journal Kiara Nursing and Midwifery Journal of Biology Science and Education
Nurmadina
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Peningkatan Hasil Belajar IPA Materi Konsep Perubahan Wujud Benda Melalui Metode Eksperimen pada Peserta Didik di Kelas V SDN No. 30 Inp. Kaida Kecamatan Pamboang Kabupaten Majene Muh. Ishak Basri Ishak; Rahmat Abdul Layn; Rivan; Muh. Ahsan; Nurmadina; Sri Sulfa Dewi
Indonesian Journal of Educational Science (IJES) Vol 2 No 1 (2019): Indonesian Journal of Educational Science (IJES)
Publisher : Universitas Sulawesi Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/ijes.v2i1.331

Abstract

Pendidikan merupakan salah satu faktor penting dalam pertumbuhan suatu bangsa. Berdasarkan pemikiran tersebut, maka perlu dilakukan peningkatan kualitas proses belajar mengajar tentang mata pelajaran IPA konsep perubahan wujud benda dengan melakukan penelitian kelas dengan tujuan meningkatkan kualitas peserta didik dalam berbagai bidang dalam rangka meningkatkan hasil belajar peserta didik dengan menggunakan metode percobaan. Penelitian tindakan kelas ini dilaksanakan dalam dua siklus pembelajaran dengan setiap siklus yang terdiri dari perencanaan, pelaksanaan, observasi, evaluasi serta refleksi. Waktu penelitian pada bulan April di kelas V SDN No, 30 Inp Kaida Kecamatan Pamboang Kabupaten Majene dengan jumlah peserta didiki 15 orang, hasil adapun pada siklus I adalah 48,8% tuntas belajar,dengan nilai tinggi 9,4% dan nilai sedang 39, 4%. Kemudian pada siklus II, turunkan dari 48,8% tuntas menjadi 84,5%, nilai tinggi dari 9,4% menjadi 31% dan nilai sedang menjadi 45%. Dengan demikian dapat disangkal bahwa peserta didik dapat meningkatkan hasil belajar pada siklus II dibandingkan siklus I setelah menggunakan metode percobaan.
Identifikasi Kandungan Rhodamin B Pada Lipstik Yang Beredar Di Pasar Tradisional Kabupaten Mamuju Akbar Nur; Nurmadina; Nini Sahrianti S; Saharuddin
Journal Kiara : Nursing and Midwifery Vol. 1 No. 1 (2024): Edisi March - August 2024
Publisher : Kiara Group

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66453/jknm.v1i1.1

Abstract

Rhodamin b can irritate the respiratory tract and is also carcinogenic or stimulate the growth of cancer cells and damage the liver if used continuously. This study aims to determine the presence of Rhodamine B content in lipsticks that are circulating in the old market and the new market in Mamuju Regency. This research is a qualitative descriptive study with laboratory testing using the KIT test and organoleptic observation with a total sample of 9 samples who do not have a BPOM permit. Based on the results of the organoleptic observation, there were 8 samples that had different colors. of the eight samples have different colors and textures that are solid and homogeneous. Observation results using a test kit from 9 samples, 8 samples were positive for rhodamine B and 1 sample was negative. The positive sample brands are S.A miss gird, S.C bulberry, S.D alovera, S.E baby lip, S.F maybellin, S.G loves me, S.H mini lip, S.I ya geul. And the sample brands that are negative are S.B, Saudi Arabia green. Suggestions for consumers to be more careful in choosing cosmetics / lipstick products. Of the nine samples that were examined, only 1 sample was negative and 8 other samples were positive. This shows that there are still many lipsticks circulating in the traditional market that contain Rhodamine B. Analysis using the Rhodamine B test kit.
Uji Organoleptik Pada Susu Biji Durian (Durio zibethinus Murr) serta Pemanfaatannya sebagai Media Pembelajaran Nurmadina; Masrianih
Journal of Biology Science and Education Vol. 8 No. 1 (2020): Juni
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/jbse.v8i1.1157

Abstract

Durian seed milk (Duriozi bethinus Murr) is processed from durian seeds which contains nutrients such as carbohydrates, fats, proteins, vitamins and minerals. This study aims to determine the level of public acceptance (organoleptic test) of durian seed milk. This research is a quantitative descriptive research. The object used is durian seeds made with 3 treatments, namely A1 (1 kg durian seeds + 1 liter of water), A2 (1 kg durian seeds + 2 liters of water) and A3 (1 kg durian seeds + 3 liters of water) with an assessment aspect namely aroma, taste, texture, and color. The results obtained show that durian seed milk has the highest organoleptic test value, namely in treatment A3 with an average hedonic scale value of 3.53 (likes) and treatment A2 with an average hedonic scale value of 3.33 (likes) while in treatment A1 the lowest with an average hedonic scale of 2.59 (somewhat like). The results of the study are very suitable to be used as learning media in the form of posters with a percentage of 82.48%, which is the average of the validation results of the three validators, namely content experts (70%), design experts (85.45%), media experts (92% ) and the results of the assessment by students (83.75%).
Design and performance test of kiln dry machine with intermitent drying method Purwanto, Agung Ari; Widiyanto, Wahyu; Nurmadina; Wijayanto, Arip; Saputra, Deni
JTTM : Jurnal Terapan Teknik Mesin Vol 7 No 1 (2026): JTTM: Jurnal Terapan Teknik Mesin
Publisher : Teknik Mesin - Universitas Muhammadiyah Cileungsi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37373/jttm.v7i1.2167

Abstract

The quality of furniture products is largely determined by the quality of the wood raw materials, particularly the degree of dryness and moisture content of the wood. Wood drying can be done naturally with sunlight or using a drying machine. Most research on drying machine design is still conventional with a continuous drying method, namely controlling the external temperature and the wood surface to keep it stable. The research aims to produce a Kiln Dry machine that can support intermittent drying by setting and monitoring temperature and humidity controls. Drying with the intermittent method has been proven to reduce defects that occur in wood. The process flow in this research includes system design, system simulation, system creation, and testing the results. The designed drying machine is capable of operating intermittently or continuously, with an outer size of 90 cm × 100 cm × 100 cm and a drying room of 70 cm × 80 cm × 80 cm, the walls are designed using rock wool insulation to maintain the temperature of the machine room. The results of the function test show that the machine is capable of reaching a temperature of 196 °C in 60 minutes, with an operating temperature limited to 115 °C. The five-stage intermittent drying test with a ramp time of 10 minutes and a soak time of 10 minutes showed that the temperature control system was able to follow the set value at each stage, although there was a temperature overshoot of 2-5ºC at each stage in the Intermittent test
Co-Authors Akbar Nur Arip Wijayanto Deni Saputra Masrianih Muh. Ahsan Muh. Ishak Basri Ishak Nini Sahrianti S Purwanto, Agung Ari Rahmat Abdul Layn Rivan Saharuddin Sri Sulfa Dewi Wahyu Widiyanto